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-   -   Is it normal for a hyrdo tranny to whine? (https://www.onlycubcadets.net/forum/showthread.php?t=60796)

hamman88 01-11-2023 08:05 AM

Is it normal for a hyrdo tranny to whine?
 
I got my Paquette's 127 running real smooth after some carb work and a rewiring. I have never owned a cub cadet before and was somewhat surprised by the whining the tranny makes when in gear. Kind of annoying since the engine sounds so good. I would say it louder at slow speeds, but it might just be the noise of going faster that covers it up.

Is this whining normal? I wouldn't describe it as incredibly loud, but the pitch and volume does make me want to grab headphones when riding it. Hydro fluid is topped off.

1711Cub 01-11-2023 08:24 AM

Some whining is normal. If it is considered excessive, it could be cold temp related, or poor quality fluid, and a clogged filter. I would ensure that the fluid and filter is fresh and full.

I recommend Case IH Hytran and an OEM filter.

hamman88 01-11-2023 09:23 AM

Quote:

Originally Posted by 1711Cub (Post 523028)
Some whining is normal. If it is considered excessive, it could be cold temp related, or poor quality fluid, and a clogged filter. I would ensure that the fluid and filter is fresh and full.

I recommend Case IH Hytran and an OEM filter.

It is a 10 year old OEM filter on it with I'm assuming almost no hours. Fluid is about half 10 year old hy-tran, half brand new generic for IH from Rural King. There was a leak from a lose fitting I fixed and then topped it off.

R Bedell 01-11-2023 10:30 AM

It is NOT uncommon, for off brand hydraulic fluids to make the Sundstrand Hydro whine a bit, especially during colder weather. The whining fades away when the temp of the oil becomes warmer.

Tim.E 01-15-2023 08:52 PM

Are you running your engine at full rpm's ?
The hydro seems to whine more if you are not running your engine at full rpm's.


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